Mathematics
Mathematics, 27.09.2021 06:10, batmanmarie2004

We want to obtain a sample to estimate a population mean. Based on previous evidence, researchers believe the population standard deviation is approximately σ
=
20.4
. We would like to be 99.5% confident that the estimate is within 4 of the true population mean. How large of a sample size is required?

answer
Answers: 3

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We want to obtain a sample to estimate a population mean. Based on previous evidence, researchers be...

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